Impaired Autophagy of GABAergic Interneurons in Neuropathic Pain

Neuropathic pain (NP) is caused by lesions of the peripheral fibers and central neurons in the somatosensory nervous system and affects 7–10% of the general population. Although the distinct cause of neuropathic pain has been investigated in primary afferent neurons over the years, pain modulation b...

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Main Authors: Yuhua Yin, Min-Hee Yi, Dong Woon Kim
Format: Article
Language:English
Published: Wiley 2018-01-01
Series:Pain Research and Management
Online Access:http://dx.doi.org/10.1155/2018/9185368
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author Yuhua Yin
Min-Hee Yi
Dong Woon Kim
author_facet Yuhua Yin
Min-Hee Yi
Dong Woon Kim
author_sort Yuhua Yin
collection DOAJ
description Neuropathic pain (NP) is caused by lesions of the peripheral fibers and central neurons in the somatosensory nervous system and affects 7–10% of the general population. Although the distinct cause of neuropathic pain has been investigated in primary afferent neurons over the years, pain modulation by central sensitization remains controversial. NP is believed to be driven by cell type-specific spinal synaptic plasticity in the dorsal horn. Upon intense afferent stimulation, spinothalamic tract neurons are potentiated, whereas GABAergic interneurons are inhibited leading to long-term depression. Growing evidences suggest that the inhibition of GABAergic neurons plays pivotal roles in the manifestation of neuropathic and inflammatory pain states. Downregulation of GABA transmission and impairment of GABAergic interneurons in the dorsal horn are critical consequences after spinal cord and peripheral nerve injuries. These impairments in GABAergic interneurons may be associated with dysfunctional autophagy, resulting in neuropathic pain. Here, we review an emerging number of investigations that suggest a pivotal role of impaired autophagy of GABAergic interneurons in NP. We discuss relevant research spurring the development of new targets and therapeutic agents of NP and emphasize the need for a multidisciplinary approach to manage NP in the future.
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spelling doaj-art-058a87a7c67e48f394b4fc33065dc6be2025-02-03T06:12:39ZengWileyPain Research and Management1203-67651918-15232018-01-01201810.1155/2018/91853689185368Impaired Autophagy of GABAergic Interneurons in Neuropathic PainYuhua Yin0Min-Hee Yi1Dong Woon Kim2Department of Medical Science, Chungnam National University School of Medicine, Daejeon 35015, Republic of KoreaDepartment of Neurology, Mayo Clinic, Rochester, MN 55905, USADepartment of Medical Science, Chungnam National University School of Medicine, Daejeon 35015, Republic of KoreaNeuropathic pain (NP) is caused by lesions of the peripheral fibers and central neurons in the somatosensory nervous system and affects 7–10% of the general population. Although the distinct cause of neuropathic pain has been investigated in primary afferent neurons over the years, pain modulation by central sensitization remains controversial. NP is believed to be driven by cell type-specific spinal synaptic plasticity in the dorsal horn. Upon intense afferent stimulation, spinothalamic tract neurons are potentiated, whereas GABAergic interneurons are inhibited leading to long-term depression. Growing evidences suggest that the inhibition of GABAergic neurons plays pivotal roles in the manifestation of neuropathic and inflammatory pain states. Downregulation of GABA transmission and impairment of GABAergic interneurons in the dorsal horn are critical consequences after spinal cord and peripheral nerve injuries. These impairments in GABAergic interneurons may be associated with dysfunctional autophagy, resulting in neuropathic pain. Here, we review an emerging number of investigations that suggest a pivotal role of impaired autophagy of GABAergic interneurons in NP. We discuss relevant research spurring the development of new targets and therapeutic agents of NP and emphasize the need for a multidisciplinary approach to manage NP in the future.http://dx.doi.org/10.1155/2018/9185368
spellingShingle Yuhua Yin
Min-Hee Yi
Dong Woon Kim
Impaired Autophagy of GABAergic Interneurons in Neuropathic Pain
Pain Research and Management
title Impaired Autophagy of GABAergic Interneurons in Neuropathic Pain
title_full Impaired Autophagy of GABAergic Interneurons in Neuropathic Pain
title_fullStr Impaired Autophagy of GABAergic Interneurons in Neuropathic Pain
title_full_unstemmed Impaired Autophagy of GABAergic Interneurons in Neuropathic Pain
title_short Impaired Autophagy of GABAergic Interneurons in Neuropathic Pain
title_sort impaired autophagy of gabaergic interneurons in neuropathic pain
url http://dx.doi.org/10.1155/2018/9185368
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